What can a biological membrane do that a semi-permeable plastic lab membrane can't? Indicate all that apply. Group of answer choices: - Actively maintain a concentration gradient - Move molecules against a concentration gradient - Exclude molecules on the basis of size - Selectively allow different molecules of the same size to pass
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Actively maintain a concentration gradient: Biological membranes can actively maintain a concentration gradient using transport proteins and energy from ATP. Semi-permeable plastic lab membranes cannot do this. So, this applies. Show more…
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